Multiply.
A. -7a2 - 
ab - 
b2
B. -7a2 + 
ab - 
b2
C. -7a2 + 
ab - 
b2
D. -7a2 - 
ab - 
b2
Answer: B
Mathematics
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Evaluate the integral using the given substitution.
dx , u = x5 - 8
A. 
x15 - 8 + C
B. 
(x5 - 8)3 + C
C. 
(x5 - 8)3 + C
D. 
(x5 - 8)1 + C
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Find the exact value of the expression using the provided information.Find sin(s - t) given that cos s = 
, with s in quadrant I, and 
with t in 
A. 
B. 
C. 
D. 
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Write the ratio as a fraction in lowest terms. Be sure to make all necessary conversions.70 cents to $6
A. 
B. 
C. 
D. 
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Factor the expression completely, if possible.25a3b - 40a2b + 16ab
A. ab(5a - 4)2 B. ab(5a + 4)2 C. ab(5a - 4)(5a + 4) D. Does not factor
Mathematics